1# Distributed under the OSI-approved BSD 3-Clause License. See accompanying 2# file Copyright.txt or https://cmake.org/licensing for details. 3 4 5include(CMakeLanguageInformation) 6 7# This file sets the basic flags for the Fortran language in CMake. 8# It also loads the available platform file for the system-compiler 9# if it exists. 10 11set(_INCLUDED_FILE 0) 12 13# Load compiler-specific information. 14if(CMAKE_Fortran_COMPILER_ID) 15 include(Compiler/${CMAKE_Fortran_COMPILER_ID}-Fortran OPTIONAL) 16endif() 17 18set(CMAKE_BASE_NAME) 19get_filename_component(CMAKE_BASE_NAME "${CMAKE_Fortran_COMPILER}" NAME_WE) 20# since the gnu compiler has several names force g++ 21if(CMAKE_COMPILER_IS_GNUG77) 22 set(CMAKE_BASE_NAME g77) 23endif() 24if(CMAKE_Fortran_COMPILER_ID) 25 include(Platform/${CMAKE_EFFECTIVE_SYSTEM_NAME}-${CMAKE_Fortran_COMPILER_ID}-Fortran OPTIONAL RESULT_VARIABLE _INCLUDED_FILE) 26endif() 27if (NOT _INCLUDED_FILE) 28 include(Platform/${CMAKE_EFFECTIVE_SYSTEM_NAME}-${CMAKE_BASE_NAME} OPTIONAL 29 RESULT_VARIABLE _INCLUDED_FILE) 30endif () 31 32# load any compiler-wrapper specific information 33if (CMAKE_Fortran_COMPILER_WRAPPER) 34 __cmake_include_compiler_wrapper(Fortran) 35endif () 36 37# We specify the compiler information in the system file for some 38# platforms, but this language may not have been enabled when the file 39# was first included. Include it again to get the language info. 40# Remove this when all compiler info is removed from system files. 41if (NOT _INCLUDED_FILE) 42 include(Platform/${CMAKE_SYSTEM_NAME} OPTIONAL) 43endif () 44 45if(CMAKE_Fortran_SIZEOF_DATA_PTR) 46 foreach(f ${CMAKE_Fortran_ABI_FILES}) 47 include(${f}) 48 endforeach() 49 unset(CMAKE_Fortran_ABI_FILES) 50endif() 51 52# This should be included before the _INIT variables are 53# used to initialize the cache. Since the rule variables 54# have if blocks on them, users can still define them here. 55# But, it should still be after the platform file so changes can 56# be made to those values. 57 58if(CMAKE_USER_MAKE_RULES_OVERRIDE) 59 # Save the full path of the file so try_compile can use it. 60 include(${CMAKE_USER_MAKE_RULES_OVERRIDE} RESULT_VARIABLE _override) 61 set(CMAKE_USER_MAKE_RULES_OVERRIDE "${_override}") 62endif() 63 64if(CMAKE_USER_MAKE_RULES_OVERRIDE_Fortran) 65 # Save the full path of the file so try_compile can use it. 66 include(${CMAKE_USER_MAKE_RULES_OVERRIDE_Fortran} RESULT_VARIABLE _override) 67 set(CMAKE_USER_MAKE_RULES_OVERRIDE_Fortran "${_override}") 68endif() 69 70if(NOT CMAKE_Fortran_COMPILE_OPTIONS_PIC) 71 set(CMAKE_Fortran_COMPILE_OPTIONS_PIC ${CMAKE_C_COMPILE_OPTIONS_PIC}) 72endif() 73 74if(NOT CMAKE_Fortran_COMPILE_OPTIONS_PIE) 75 set(CMAKE_Fortran_COMPILE_OPTIONS_PIE ${CMAKE_C_COMPILE_OPTIONS_PIE}) 76endif() 77if(NOT CMAKE_Fortran_LINK_OPTIONS_PIE) 78 set(CMAKE_Fortran_LINK_OPTIONS_PIE ${CMAKE_C_LINK_OPTIONS_PIE}) 79endif() 80if(NOT CMAKE_Fortran_LINK_OPTIONS_NO_PIE) 81 set(CMAKE_Fortran_LINK_OPTIONS_NO_PIE ${CMAKE_C_LINK_OPTIONS_NO_PIE}) 82endif() 83 84if(NOT CMAKE_Fortran_COMPILE_OPTIONS_DLL) 85 set(CMAKE_Fortran_COMPILE_OPTIONS_DLL ${CMAKE_C_COMPILE_OPTIONS_DLL}) 86endif() 87 88# Create a set of shared library variable specific to Fortran 89# For 90% of the systems, these are the same flags as the C versions 90# so if these are not set just copy the flags from the c version 91if(NOT DEFINED CMAKE_SHARED_LIBRARY_CREATE_Fortran_FLAGS) 92 set(CMAKE_SHARED_LIBRARY_CREATE_Fortran_FLAGS ${CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS}) 93endif() 94 95if(NOT DEFINED CMAKE_SHARED_LIBRARY_Fortran_FLAGS) 96 set(CMAKE_SHARED_LIBRARY_Fortran_FLAGS ${CMAKE_SHARED_LIBRARY_C_FLAGS}) 97endif() 98 99if(NOT DEFINED CMAKE_SHARED_LIBRARY_LINK_Fortran_FLAGS) 100 set(CMAKE_SHARED_LIBRARY_LINK_Fortran_FLAGS ${CMAKE_SHARED_LIBRARY_LINK_C_FLAGS}) 101endif() 102 103if(NOT DEFINED CMAKE_SHARED_LIBRARY_RUNTIME_Fortran_FLAG) 104 set(CMAKE_SHARED_LIBRARY_RUNTIME_Fortran_FLAG ${CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG}) 105endif() 106 107if(NOT DEFINED CMAKE_SHARED_LIBRARY_RUNTIME_Fortran_FLAG_SEP) 108 set(CMAKE_SHARED_LIBRARY_RUNTIME_Fortran_FLAG_SEP ${CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG_SEP}) 109endif() 110 111if(NOT DEFINED CMAKE_SHARED_LIBRARY_RPATH_LINK_Fortran_FLAG) 112 set(CMAKE_SHARED_LIBRARY_RPATH_LINK_Fortran_FLAG ${CMAKE_SHARED_LIBRARY_RPATH_LINK_C_FLAG}) 113endif() 114 115if(NOT DEFINED CMAKE_EXE_EXPORTS_Fortran_FLAG) 116 set(CMAKE_EXE_EXPORTS_Fortran_FLAG ${CMAKE_EXE_EXPORTS_C_FLAG}) 117endif() 118 119if(NOT DEFINED CMAKE_SHARED_LIBRARY_SONAME_Fortran_FLAG) 120 set(CMAKE_SHARED_LIBRARY_SONAME_Fortran_FLAG ${CMAKE_SHARED_LIBRARY_SONAME_C_FLAG}) 121endif() 122 123# for most systems a module is the same as a shared library 124# so unless the variable CMAKE_MODULE_EXISTS is set just 125# copy the values from the LIBRARY variables 126if(NOT CMAKE_MODULE_EXISTS) 127 set(CMAKE_SHARED_MODULE_Fortran_FLAGS ${CMAKE_SHARED_LIBRARY_Fortran_FLAGS}) 128 set(CMAKE_SHARED_MODULE_CREATE_Fortran_FLAGS ${CMAKE_SHARED_LIBRARY_CREATE_Fortran_FLAGS}) 129endif() 130 131# repeat for modules 132if(NOT DEFINED CMAKE_SHARED_MODULE_CREATE_Fortran_FLAGS) 133 set(CMAKE_SHARED_MODULE_CREATE_Fortran_FLAGS ${CMAKE_SHARED_MODULE_CREATE_C_FLAGS}) 134endif() 135 136if(NOT DEFINED CMAKE_SHARED_MODULE_Fortran_FLAGS) 137 set(CMAKE_SHARED_MODULE_Fortran_FLAGS ${CMAKE_SHARED_MODULE_C_FLAGS}) 138endif() 139 140if(NOT DEFINED CMAKE_EXECUTABLE_RUNTIME_Fortran_FLAG) 141 set(CMAKE_EXECUTABLE_RUNTIME_Fortran_FLAG ${CMAKE_SHARED_LIBRARY_RUNTIME_Fortran_FLAG}) 142endif() 143 144if(NOT DEFINED CMAKE_EXECUTABLE_RUNTIME_Fortran_FLAG_SEP) 145 set(CMAKE_EXECUTABLE_RUNTIME_Fortran_FLAG_SEP ${CMAKE_SHARED_LIBRARY_RUNTIME_Fortran_FLAG_SEP}) 146endif() 147 148if(NOT DEFINED CMAKE_EXECUTABLE_RPATH_LINK_Fortran_FLAG) 149 set(CMAKE_EXECUTABLE_RPATH_LINK_Fortran_FLAG ${CMAKE_SHARED_LIBRARY_RPATH_LINK_Fortran_FLAG}) 150endif() 151 152if(NOT DEFINED CMAKE_SHARED_LIBRARY_LINK_Fortran_WITH_RUNTIME_PATH) 153 set(CMAKE_SHARED_LIBRARY_LINK_Fortran_WITH_RUNTIME_PATH ${CMAKE_SHARED_LIBRARY_LINK_C_WITH_RUNTIME_PATH}) 154endif() 155 156if(NOT CMAKE_INCLUDE_FLAG_Fortran) 157 set(CMAKE_INCLUDE_FLAG_Fortran ${CMAKE_INCLUDE_FLAG_C}) 158endif() 159 160if(CMAKE_EXECUTABLE_FORMAT STREQUAL "ELF") 161 if(NOT DEFINED CMAKE_Fortran_LINK_WHAT_YOU_USE_FLAG) 162 set(CMAKE_Fortran_LINK_WHAT_YOU_USE_FLAG "LINKER:--no-as-needed") 163 endif() 164 if(NOT DEFINED CMAKE_LINK_WHAT_YOU_USE_CHECK) 165 set(CMAKE_LINK_WHAT_YOU_USE_CHECK ldd -u -r) 166 endif() 167endif() 168 169set(CMAKE_VERBOSE_MAKEFILE FALSE CACHE BOOL "If this value is on, makefiles will be generated without the .SILENT directive, and all commands will be echoed to the console during the make. This is useful for debugging only. With Visual Studio IDE projects all commands are done without /nologo.") 170 171set(CMAKE_Fortran_FLAGS_INIT "$ENV{FFLAGS} ${CMAKE_Fortran_FLAGS_INIT}") 172 173cmake_initialize_per_config_variable(CMAKE_Fortran_FLAGS "Flags used by the Fortran compiler") 174 175if(NOT CMAKE_Fortran_COMPILER_LAUNCHER AND DEFINED ENV{CMAKE_Fortran_COMPILER_LAUNCHER}) 176 set(CMAKE_Fortran_COMPILER_LAUNCHER "$ENV{CMAKE_Fortran_COMPILER_LAUNCHER}" 177 CACHE STRING "Compiler launcher for Fortran.") 178endif() 179 180include(CMakeCommonLanguageInclude) 181 182# now define the following rule variables 183# CMAKE_Fortran_CREATE_SHARED_LIBRARY 184# CMAKE_Fortran_CREATE_SHARED_MODULE 185# CMAKE_Fortran_COMPILE_OBJECT 186# CMAKE_Fortran_LINK_EXECUTABLE 187 188# create a Fortran shared library 189if(NOT CMAKE_Fortran_CREATE_SHARED_LIBRARY) 190 set(CMAKE_Fortran_CREATE_SHARED_LIBRARY 191 "<CMAKE_Fortran_COMPILER> <CMAKE_SHARED_LIBRARY_Fortran_FLAGS> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_Fortran_FLAGS> <SONAME_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>") 192endif() 193 194# create a Fortran shared module just copy the shared library rule 195if(NOT CMAKE_Fortran_CREATE_SHARED_MODULE) 196 set(CMAKE_Fortran_CREATE_SHARED_MODULE ${CMAKE_Fortran_CREATE_SHARED_LIBRARY}) 197endif() 198 199# Create a static archive incrementally for large object file counts. 200# If CMAKE_Fortran_CREATE_STATIC_LIBRARY is set it will override these. 201if(NOT DEFINED CMAKE_Fortran_ARCHIVE_CREATE) 202 set(CMAKE_Fortran_ARCHIVE_CREATE "<CMAKE_AR> qc <TARGET> <LINK_FLAGS> <OBJECTS>") 203endif() 204if(NOT DEFINED CMAKE_Fortran_ARCHIVE_APPEND) 205 set(CMAKE_Fortran_ARCHIVE_APPEND "<CMAKE_AR> q <TARGET> <LINK_FLAGS> <OBJECTS>") 206endif() 207if(NOT DEFINED CMAKE_Fortran_ARCHIVE_FINISH) 208 set(CMAKE_Fortran_ARCHIVE_FINISH "<CMAKE_RANLIB> <TARGET>") 209endif() 210 211# compile a Fortran file into an object file 212# (put -o after -c to workaround bug in at least one mpif77 wrapper) 213if(NOT CMAKE_Fortran_COMPILE_OBJECT) 214 set(CMAKE_Fortran_COMPILE_OBJECT 215 "<CMAKE_Fortran_COMPILER> <DEFINES> <INCLUDES> <FLAGS> -c <SOURCE> -o <OBJECT>") 216endif() 217 218# link a fortran program 219if(NOT CMAKE_Fortran_LINK_EXECUTABLE) 220 set(CMAKE_Fortran_LINK_EXECUTABLE 221 "<CMAKE_Fortran_COMPILER> <CMAKE_Fortran_LINK_FLAGS> <LINK_FLAGS> <FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>") 222endif() 223 224if(CMAKE_Fortran_STANDARD_LIBRARIES_INIT) 225 set(CMAKE_Fortran_STANDARD_LIBRARIES "${CMAKE_Fortran_STANDARD_LIBRARIES_INIT}" 226 CACHE STRING "Libraries linked by default with all Fortran applications.") 227 mark_as_advanced(CMAKE_Fortran_STANDARD_LIBRARIES) 228endif() 229 230# set this variable so we can avoid loading this more than once. 231set(CMAKE_Fortran_INFORMATION_LOADED 1) 232